Integer overflow in Ashlar Cobalt
CVE-2025-2021
Ashlar-Vellum Cobalt XE File Parsing Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. User interaction is required…
Vulnerability class: Integer Overflow
EPSS: 0.003 (17.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Ashlar Cobalt — versions 12.0.1204.91
- Ashlar-vellum Cobalt — versions 1204.91
Weakness classification (CWE)
Public proof-of-concept exploits
References
- zdi-disclosures@trendmicro.com (x_research-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-2021?
- CVE-2025-2021 is a high-severity vulnerability in Ashlar Cobalt, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2025-03-11.
- How severe is CVE-2025-2021?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2025-2021 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.